National Weather Service Forecast for: Welby, CO
Issued by: National Weather Service Denver/Boulder, CO
Updated: Tue, 09-Jun-2026 12:46am MDT
Thornton, CO
 
  Tuesday

Tuesday: Patchy Fog then Partly Sunny
Patchy Fog then Partly Sunny
Wednesday

Wednesday: Sunny
Sunny
Thursday

Thursday: Sunny
Sunny
Friday

Friday: Sunny
Sunny
Saturday

Saturday: Sunny
Sunny
Sunday

Sunday: Slight Chance Rain Showers then Chance Showers And Thunderstorms
Slight Chance Rain Showers then Chance Showers And T-Storms
Monday

Monday: Mostly Sunny then Chance Showers And Thunderstorms
Mostly Sunny then Chance Showers And T-Storms
  Hi 93 °F Hi 91 °F Hi 82 °F Hi 92 °F Hi 89 °F Hi 76 °F Hi 78 °F
 
Overnight

Overnight: Patchy Fog
Patchy Fog
Tuesday
Night
Tuesday Night: Partly Cloudy
Partly Cloudy
Wednesday
Night
Wednesday Night: Mostly Clear
Mostly Clear
Thursday
Night
Thursday Night: Mostly Clear
Mostly Clear
Friday
Night
Friday Night: Mostly Clear
Mostly Clear
Saturday
Night
Saturday Night: Chance Showers And Thunderstorms
Chance Showers And T-Storms
Sunday
Night
Sunday Night: Chance Showers And Thunderstorms
Chance Showers And T-Storms
 
Lo 58 °F Lo 58 °F Lo 57 °F Lo 54 °F Lo 59 °F Lo 56 °F Lo 53 °F  

Red Flag Warning issued June 9 at 12:34AM MDT until June 9 at 9:00PM MDT
Fire Weather Watch issued June 9 at 12:34AM MDT until June 10 at 8:00PM MDT
 

Overnight
 
Patchy fog. Mostly clear. Low around 58, with temperatures rising to around 62 overnight. Southwest wind around 3 mph.
Tuesday
 
Patchy fog before 8am. Partly sunny. High near 93, with temperatures falling to around 91 in the afternoon. South southwest wind 5 to 21 mph, with gusts as high as 33 mph.
Tuesday Night
 
Partly cloudy. Low around 58, with temperatures rising to around 61 overnight. West southwest wind 2 to 20 mph, with gusts as high as 30 mph.
Wednesday
 
Sunny, with a high near 91. Southwest wind 3 to 16 mph, with gusts as high as 26 mph.
Wednesday Night
 
Mostly clear, with a low around 57. North wind 5 to 16 mph, with gusts as high as 30 mph.
Thursday
 
Sunny, with a high near 82.
Thursday Night
 
Mostly clear, with a low around 54.
Friday
 
Sunny, with a high near 92.
Friday Night
 
Mostly clear, with a low around 59.
Saturday
 
Sunny, with a high near 89.
Saturday Night
 
A chance of showers and thunderstorms. Mostly cloudy, with a low around 56.
Sunday
 
A slight chance of rain showers before noon, then a chance of showers and thunderstorms. Partly sunny, with a high near 76.
Sunday Night
 
A chance of showers and thunderstorms. Mostly cloudy, with a low around 53.
Monday
 
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 78.

 

Forecast from NOAA-NWS for Welby, CO.